I'll make your point for you by saying my personal experience already disagrees.

I have a 45 F-last suede wingtip that is a perfect fit. I have two Alden Barrie lasted shoes that are 11.0 D and they are both much wider than the F-last. I certainly wouldn't want to go swimming in a Barrie 11.5.

I find the barrie a tad larger than .5 down in the larger sizes (esp shell). but everyone's feet fit slightly differently in dfferent lasts, as the forum wisdom goes of course.

I find the barrie a tad larger than .5 down in the larger sizes (esp shell). but everyone's feet fit slightly differently in dfferent lasts, as the forum wisdom goes of course.

I agree, I am the following:

P2 44 (G wide) - shell
F 44.5 (G Wide)- suede
Barrie 10E - PTB shell

The Barrie 10E is very similar to the P2 44G ,(maybe P2 G is a touch smaller in width but a little more instep volume) while the F 44.5G is certainly narrower around the ball and toe box than both of the others. The heels on the Barrie are looser then all Vass models I have too.

I think it would probably be a good idea to include Allen Edmonds here in terms of sizing comparison. For the American members, the 65 last has likely been in their shoe collection at some point and is an easy reference point.

un-surprisingly sizing all over the place. my best fitting vass ever was a vass f last calfskin balmoral followed by vass f last shell blucher norweger. their boots - for the longest time - were made with a very large ankle opening/shaft so it made the boot feel larger than it really was. add to the fact that their heels arent exactly narrow, and now the problem trickles down to instep feeling larger than it really is

f last is a good starting point no? does everyone (everyone with a regular instep, regular width) agree

You've just identified another big problem in seeking uniform sizing advice. Our starting point is different. RTW fit is an approximation. 3 guys could wear a 43 in F last, but for one it could be perfect, for another it could be a touch loose in the forefoot and the other a touch snug. Problem comes when you move from the base to compare other lasts. Of those same 3 guys one will size up for U and the others won't. One will size down for P2 and the others won't etc.

Yes, big update, though I'm behind on posting IG pics of Budapest. The rest are all there now.

I also got a huge stack of swatches from Rezsö, who was super helpful and helped me find my fitting in four lasts. And...I placed my first Vass order for those oxblood bal boots with matching belt. Super excited. Wanted to order a second pair, but then you guys might find two separate eBay listings for single testicles, BIN: $1, free shipping. Condition: No Bueno.Have some findings to share:(Click to show)

My fitting...

No liner, thin sock:
F - 40.5G
P2 - 40F
U - 41F (or 40.5G)
SP - 40.5G

Insole, thin sock:
F - 41G
P2 - 40.5F
U - 41.5F (or 41G)

Observations...

In terms of proportions, U looks best until about 43 ish, then starts looking pointy. F last to my eyes looked better at 42 and higher. I need a smaller size, and F looked surprisingly stubbier than I've seen in pics.

U last was my best fitting RTW shoe ever, better than MH71 (by a hair). F last is surprisingly low just before the forefoot, but the toe box height is relatively tall. U has a higher instep and the slope to toe box is more elegant.

Per Rezsö, Goyser DOES increase shoe volume a bit, so maybe I won't size up in width if I decide on this detail.

Impossible to do beveled waist and Dainite; the machine broke once when they tried.

No Goyser plus beveled waist. If you see this, it's not true Goyser.

Beveled waist available on Single, HAF, or double leather soles.

Rubber topy is always done over an additional rubber toe tap, in case the topy ever separates at the tip, so the sole is protected.

Their clientele is mostly politicians and much older businessmen of Hungary. Unless, of course, you're subscribed to this thread. He said internet exposure has been amazing.

There are two shops, within 100 ft of each other. He usually works the first one, not the other closer to Buday, which the Vass folks seem to know personally (unconfirmed).

I saw Mr Vass, who was heading home. Totally forgot to bring my book for him to sign. Seemed to operate like clockwork.

Shoe trees are lasted for all lasts but for F width only; they fit like gloves. Three piece trees won't be available until at least Fall. Changing suppliers.

Saltwater croc is double (!!!) the price of cayman croc, whose ridges are much more pronounced.They've done shark, stingray, and hippo. Recently.

Oh, and he said Italian suede they use is unfortunately much thinner than the French suede. The Italians like to split the grain—I guess to double the yield?—but the French don't. I won't request Italian stuff if I can help it.

I actually feel a bit heart broken. My last night here and leaving in a few hours, and it's been hands down one of the coolest cities I've ever seen. Incredible range of stuff to do, super quirky and fun crowds. We are absolutely coming back very soon.Edited by sacafotos - 2/13/16 at 2:33pm

I actually feel a bit heart broken. My last night here and leaving in a few hours, and it's been hands down one of the coolest cities I've ever seen. Incredible range of stuff to do, super quirky and fun crowds. We are absolutely coming back very soon.

I've been saying many times now everyone who loves Vass needs to go to Budapest. It's a beautiful European city yet it's affordable. I can never have enough Vass and Goulash.